Home / 449,512.40-620,316.73-245,564.16

Finding the Fourth Proportional to 449,512.40, 620,316.73 and 245,564.16

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Solution

The fourth proportional to 449,512.40, 620,316.73 and 245,564.16 is: 338,872.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,512.40 : 620,316.73 = 245,564.16 : x
  2. Step 2: Convert to fraction form
    449,512.40/620,316.73 = 245,564.16/x
  3. Step 3: Cross multiply
    449,512.40x = 620,316.73 × 245,564.16
  4. Step 4: Simplify right side
    449,512.40x = 152,327,554,717.16
  5. Step 5: Solve for x
    x = 152,327,554,717.16/449,512.40
  6. Step 6: Final answer
    x = 338,872.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.